In the new NAUTILUS
®
CC plus casting machine,
by contrast, a mechanical measuring method is
used to determine the casting moment, enabling
precise determination of the casting temperature
within a very short time, even with small quantities
of alloy. At the same time the light information of the
melt is evaluated by means of an optical system and
a so-called pyrometer with a multichannel
measuring system and converted into temperature
values. The melting process is monitored on the
basis of the data captured in this way and casting
can be triggered automatically (on request also
manually) after the alloy-specific casting temper-
ature is reached. The measuring method applied is
able to compensate for influences due to fluctua-
tions in the light emission of the melt, such as those
occurring when the oxide skin opens during melting.
Through this innovative technology in the
NAUTILUS
®
CC plus the optimal casting tempera-
tures were determined for BEGO alloys and stored
in special casting programs for the machine control.
Thanks to the new measuring technique, it is now
possible to determine the casting temperatures very
reliably and on a reproducible basis. The standard
values recommended thus far for the casting
temperatures of BEGO alloys have consequently
been adapted to the newly defined values in some
cases and are summarized in the casting table of
this operating manual.
If alloys of other manufacturers are used in the
NAUTILUS
®
CC plus, the casting program of a
BEGO alloy can be copied with maximum
conformity to alloy composition and properties. Now
only the casting temperature and the name of the
non-BEGO alloy have to be adapted according to
the respective manufacturer's specifications. Users
can manually cast non-BEGO alloys for which
casting temperatures are lacking according to their
visual impression and then utilize the displayed
temperature to create their own casting programs
for automatic operation with these alloys. The
procedure for creating a casting program for a non-
BEGO alloy in the program memory of the
NAUTILUS
®
CC plus involves only a few steps and
is described in the operating manual.
To Next Page
Loading...
Need help?
General
